SQLite

Timeline
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

200 most recent check-ins using file src/mutex_unix.c version 5cf67646

2018-12-14
20:28
Add a missing OP_ColumnsUsed opcode to code for expressions like "? IN (SELECT ...)" in cases where expression can use an index that may contain NULL values. (Backported fix from version 3.14.0). (Leaf check-in: 11368e67 user: drh tags: branch-3.8.9)
20:20
Add the OP_ColumnsUsed opcode (when compiled with SQLITE_ENABLE_COLUMN_USED_MASK) as a hint to the b-tree layer as to which columns of a btree cursor will be used. (Backport from 3.8.11) (check-in: b29e02f8 user: drh tags: branch-3.8.9)
2017-11-14
18:26
Fix the SQLITE_ENABLE_UPDATE_DELETE_LIMIT functionality so that it works with views and WITHOUT ROWID tables. This is a modified cherrypick of [dae4a97a]. (check-in: b2679d3b user: dan tags: branch-3.8.9)
2017-11-09
04:13
Disallow ORDER BY and LIMIT on UPDATE and DELETE of views and WITHOUT ROWID tables. This is a temporary fix for ticket [d4beea1633f1b88f] until a better solution can be found. (check-in: 30aa941f user: drh tags: branch-3.8.9)
2017-07-27
22:16
Enhance the like optimization so that it works with an ESCAPE clause. (check-in: 2495acf7 user: drh tags: branch-3.8.9)
2017-07-21
04:08
Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This is a cherry-pick of [f0f49224] which was in turn inspired by [72de49f2]. (Leaf check-in: 5a3022e0 user: drh tags: branch-3.8.10)
2017-07-17
19:37
Try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. This is a cherry-pick of [6df18e949d36] with bug fixes. (check-in: cd6ac078 user: drh tags: branch-3.8.9)
19:25
When checking for the WHERE-clause push-down optimization, verify that all terms of the compound inner SELECT are non-aggregate, not just the last term. Fix for ticket [f7f8c97e97597]. (Closed-Leaf check-in: adc082c1 user: drh tags: push-down-backport)
19:14
Do not apply the WHERE-clause pushdown optimization to terms that originate in the ON or USING clause of a LEFT JOIN. Fix for ticket [c2a19d81652f40568c]. (check-in: 52674f94 user: drh tags: push-down-backport)
19:07
For FROM-clause subqueries that cannot be flattened, try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. Cherry-pick from [6df18e949d36]. Still need to backport bug fixes associated with that check-in. (check-in: 043d6ce8 user: drh tags: push-down-backport)
2017-07-08
01:01
Fix the covering index OR optimization (check-in [fcbd6abd]) so that it works with SQLITE_MAX_ATTACHED>30. Broken by a bad cherry-pick merge. (check-in: d227de8a user: drh tags: branch-3.8.9)
2017-07-05
16:20
Make use of covering indexes in the OR optimization. (check-in: fcbd6abd user: drh tags: branch-3.8.9)
14:54
Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: b7ae4b87 user: drh tags: branch-3.8.9)
2017-06-06
18:22
Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 802b82f3 user: drh tags: branch-3.8.9)
2017-05-24
04:32
Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. (check-in: 19dad0a7 user: drh tags: branch-3.8.9)
2017-05-22
00:27
When planning a query using sorting, resolve ties in the solver by selecting loop plans with the smaller unsorted cost. (check-in: 962531e7 user: drh tags: branch-3.8.9)
2017-01-11
14:21
In the STAT4 computations, ensure that the aAvgEq values do not go negative. (check-in: 4f83f680 user: drh tags: branch-3.8.9)
2016-11-02
16:29
When the block sorting optimization is used in a scalar subquery, be sure to exit the loop as soon as the first valid output row is received. Fix for ticket [cb3aa0641d9a4] backported to the 3.8.9 branch. (check-in: 8e4ba115 user: drh tags: branch-3.8.9)
2016-09-23
18:06
Fix the ORDER BY LIMIT optimization backport so that it works when the ORDER BY uses the DESC direction. (check-in: 0c3cafb7 user: drh tags: branch-3.8.9)
2016-09-14
01:43
Backport the ORDER BY LIMIT optimization to version 3.8.9. (check-in: db361482 user: drh tags: branch-3.8.9)
2015-08-11
18:18
Fix the retry mechanism on file locks. (check-in: 600df309 user: drh tags: apple-osx)
2015-07-03
20:47
Rework the Fts5MultiSegIter structure a bit to make it more efficient. (check-in: 0778825d user: dan tags: trunk)
19:13
Speed up eof checks on fts5 cursors. (check-in: 3df4af5d user: dan tags: trunk)
17:54
Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. (check-in: 030f60a7 user: mistachkin tags: trunk)
17:14
Avoid freeing the array of instance matches each time the fts5 xNext() method is called. (check-in: b9b0c1e5 user: dan tags: trunk)
14:34
New command-line options for speedtest1: --multithread, --nomemstat, --serialized, and --singlethread (check-in: 2b756722 user: drh tags: trunk)
2015-07-02
20:12
Copy fts5.h into the build directory as part of building fts5.c. Also remove code to edit fts5parse.c from various Makefiles and add it to mkfts5c.tcl. (check-in: 4d8f03dc user: dan tags: trunk)
19:47
When doing coverage analysis of a btree page for pragma integrity_check, make the first entry (that covers the header, cell index, and gap) implied, for a performance boost and size reduction. (check-in: e53d497c user: drh tags: trunk)
18:52
Minor change to mkfts5c.tcl so that fts5.c can be used according to the instructions in loadext.html. (check-in: edbcccd3 user: dan tags: trunk)
18:47
Merge in the latest enhancements from trunks, especially the use of _byteswap_ulong() and similar intrinsics on MSVC. (check-in: 85ca4409 user: drh tags: sessions)
18:16
Add fts5_source_id() SQL function, similar to sqlite_source_id(). (check-in: ec257348 user: dan tags: trunk)
16:52
Fix harmless compiler warnings and one macro VVA_ONLY macro usage issue. (check-in: bcc8a755 user: mistachkin tags: trunk)
16:50
Simplify FTS5 handling in the MSVC makefile. (check-in: f022e043 user: mistachkin tags: trunk)
16:29
Fix a (harmless) shadowed local variable definition in the integrity_check logic. (check-in: 3a26a919 user: drh tags: trunk)
16:17
Smaller and faster PRAGMA integrity_check that also does a better job of detecting errors. Some output text describing discovered file corruption has changed for clarity. (check-in: 251a7590 user: drh tags: trunk)
15:52
Remove "#ifdef SQLITE_ENABLE_FTS5" from individual fts5 source files. Add a single "#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5)" to fts5.c. (check-in: 7819002e user: dan tags: trunk)
01:38
Add the --shrink-memory option to the speedtest1 test program. (check-in: c9ddbd88 user: drh tags: trunk)
2015-07-01
19:59
Avoid create a stack from in sqlite3BackupUpdate() in the common case where the first argument is NULL. (check-in: 2a897b9e user: drh tags: trunk)
17:53
Simplification of PRAGMA integrity_check logic. Make sure that the depth of the right-most subtree is correct. Size reduction and performance increase, with no change in output. (check-in: 550705fc user: drh tags: trunk)
17:13
Rework the PRAGMA integrity_check logic. Simplify the checkTreePage() routine and clean up the error messages generated. (Closed-Leaf check-in: 1c522123 user: drh tags: integrity-check-refactor)
04:08
Fix some harmless compiler warnings. (check-in: 307195c8 user: drh tags: trunk)
01:31
Change integrity_check to analyze the cells of a page in reverse order, as this will tend to insert the cells into the analysis heap in increasing order by address, which is the most efficient way to load a min-heap. (check-in: 59ad912c user: drh tags: trunk)
2015-06-30
17:28
Make use of the _byteswap_ushort() and _byteswap_ulong() compiler intrinsics for MSVC, when available. (check-in: fe144dd7 user: mistachkin tags: trunk)
16:29
Merge all the latest enhancements from trunk. This merge include FTS5 and a number of notable performance enhancements. (check-in: 39936b33 user: drh tags: sessions)
15:10
Make use of built-in bswap32() and bswap16() functions in GCC/Clang for a significant performance improvement there. (check-in: 8bfcda3d user: drh tags: trunk)
14:01
Only use __builtin_bswap16() with GCC 4.8 and later. (Closed-Leaf check-in: ce8177e3 user: drh tags: bswap-functions)
13:28
Remove the use of htonl() in the previous check-in due to linkage issues. Add the get2byteAligned() macro and use it for access to the cell offsets on btree pages for about a 1% performance gain. (check-in: 79ff36b7 user: drh tags: bswap-functions)
12:47
Make use of htonl() and __builtin_bswap32() for faster implementations of sqlite3Get4byte() and sqlite3Put4byte(). (check-in: bc27ebd7 user: drh tags: bswap-functions)
11:07
Change an unreachable branch into an assert() in sqlite3PagerAcquire() and optimize sqlite3PcacheOpenSavepoint() by factoring out rarely used code into a subroutine. (check-in: b406b20e user: drh tags: trunk)
03:57
Optimization to the sqlite3PcacheFetch() logic. (check-in: d9a0481c user: drh tags: trunk)
03:34
Put all variable declarations for sqlite3PagerWrite() at the beginning of the block. Syntax only - no logic changes. (check-in: a0fa6b3b user: drh tags: trunk)
03:18
Implement sqlite3Strlen30() using strlen() from the C library. (check-in: 8001aa52 user: drh tags: trunk)
03:13
Change sqlite3ApiExit() so that its first argument is never NULL. (check-in: 791b706e user: drh tags: trunk)
02:47
Put BtCursor objects on a singly-linked list instead of a doubly-linked list. Add the BTCF_Multiple flag. Only invoke saveAllCursors() when using a cursor that has BTCF_Multiple set. (check-in: 429ccef2 user: drh tags: trunk)
01:25
Convert several 5-year-old and older NEVER() macros into assert(). (check-in: ed54c14e user: drh tags: trunk)
2015-06-29
23:01
From sqlite3BtreeInsert(), bypass the btreeMoveto() routine for table inserts and go directly to sqlite3BtreeMovetoUnpacked(). (check-in: 53fe685d user: drh tags: trunk)
20:53
Add a bypass path in sqlite3PagerWrite() for pages with the PGHDR_WRITEABLE bit set, for about a 1% performance increase. (check-in: ba425a6a user: drh tags: trunk)
19:08
Combine subjRequiresPage() and subjournalPage() into a single subjournalPageIfRequired() routine. (check-in: 3b65eb56 user: drh tags: trunk)
18:29
Add the PGHDR_WRITEABLE bit for PgHdr.flags which is used to distinguish between pages that are on the dirty list and pages that are safe to modify. (check-in: 7c4ef7b7 user: drh tags: trunk)
18:14
Fix over-length source code lines in pager.c. (check-in: 14de3d39 user: drh tags: trunk)
15:41
Fix minor problems in the ota demo application. (check-in: 6aaaec6e user: dan tags: trunk)
14:11
Simplifications and performance improvement in pager_write(). (check-in: ab7aeeea user: drh tags: trunk)
04:21
Add the new PGHDR_CLEAN bit to PgHdr.flags in pcache.c. This bit is always the opposite of PGHDR_DIRTY. Use the extra bit to avoid a comparison for a small performance boost. (check-in: 8619fc34 user: drh tags: trunk)
03:28
Very small size reduction and performance increase in sqlite3BitvecTest(). (check-in: 9b3a7281 user: drh tags: trunk)
00:52
Move an assert() and testcase() into their correct position within getAndInitPage(). (check-in: 18115164 user: drh tags: trunk)
00:21
Use tail recursion in pcache1Unpin() to get a small size reduction and speed improvement. (check-in: fde70472 user: drh tags: trunk)
2015-06-28
17:33
Comment typo fix and minor cleanup in the pager. No logic changes. (check-in: 94ef1701 user: drh tags: trunk)
02:58
Avoid unnecessary calls to sqlite3VdbeSerialTypeLen() for integer serial types, for a small size reduction and a speed increase. (check-in: 9cd30d33 user: drh tags: trunk)
2015-06-27
23:55
Make greater use of BtCursor.curIntKey. (check-in: 63998471 user: drh tags: trunk)
22:49
Add the BtCursor.curIntKey field and use it for a small size reduction and performance boost. (check-in: 4a17df13 user: drh tags: trunk)
20:55
Enhancements to the previous check-in to make it a little smaller and faster. (check-in: 291d9e0c user: drh tags: trunk)
19:45
Performance improvements in moveToChild() by shifting some work over to getAndInitPage(). Net improvement is about 800K cycles at cost of 30 bytes. (check-in: 1956a4ce user: drh tags: trunk)
15:51
Manually inline the call from getAndInitPage() to btreeGetPage() for a savings of 2.5 million cycles at a cost of less than 100 bytes. (check-in: 7f65b96b user: drh tags: trunk)
14:59
Add releasePageNotNull() as an alternative to releasePage() when the argument is guaranteed to be non-NULL, and use it for a small performance gain. (check-in: 9383a688 user: drh tags: trunk)
03:58
Add the Mempage.aDataOfst field and use it in sqlite3BtreeMovetoUnpacked() for about a 2 million cycle gain. (check-in: bee94dc3 user: drh tags: trunk)
2015-06-26
20:45
Treat compilation of FTS5 for the loadable extension specially with MSVC. (check-in: 7c610276 user: mistachkin tags: trunk)
20:25
Merge fts5 branch into trunk. (check-in: d27d9965 user: dan tags: trunk)
20:14
Merge latest trunk with this branch. (Closed-Leaf check-in: 8671b9e1 user: dan tags: fts5)
20:13
Remove unnecessary lines from fts3.h and main.mk. (check-in: c1b268ce user: dan tags: fts5)
20:08
Fix a segfault that could follow an OOM error in fts5. (check-in: 713239b8 user: dan tags: fts5)
19:43
Small size reduction and performance increase on the OP_IdxInsert opcode. (check-in: b6bedc2e user: drh tags: trunk)
19:33
Merge latest trunk changes with this branch. (check-in: 2a1af0f2 user: dan tags: fts5)
18:50
Fix some cases in the fts5 code where a corrupt database could cause a buffer overread. (check-in: 360c57bb user: dan tags: fts5)
18:47
Further optimization of SQL function dispatch. Improvements to opcode documentation. (check-in: eaddbf29 user: drh tags: trunk)
18:16
Cache the sqlite3_context structure in the P4 operand of VDBE programs for faster SQL function dispatch. (check-in: 2abc44eb user: drh tags: trunk)
17:10
Merge changes to get FTS5 working with MSVC. (check-in: 954231d2 user: mistachkin tags: fts5)
16:55
Merge upstream changes. Get the test fixture working with FTS5. Fix compiler warnings. (Closed-Leaf check-in: bfcd1608 user: mistachkin tags: fts5Msvc)
16:42
Remove fts5 initialization code from core file main.c. (check-in: c91a93b3 user: dan tags: fts5)
16:17
Add FTS5 DLL target for MSVC. (check-in: be85b824 user: mistachkin tags: fts5Msvc)
13:31
Cache the most recently sqlite3_context used by OP_Function and reuse it on subsequent calls, if appropriate. This gives a noticable performance boost. (Closed-Leaf check-in: 2f31bdd1 user: drh tags: function-ctx-cache)
04:34
Initial changes to get FTS5 working with MSVC. (check-in: ef2052f8 user: mistachkin tags: fts5Msvc)
03:12
Fix harmless compiler warning in assert statement. (check-in: 7097716c user: mistachkin tags: trunk)
02:41
Simplify the pcache by not keeping continuous track of page 1 but instead just loading page 1 on the rare occasions when it is actually needed. (check-in: 015302f1 user: drh tags: trunk)
2015-06-25
23:52
Optimization to sqlite3_value_bytes() for the common case that does not require a data transformation. (check-in: 8d79f3a1 user: drh tags: trunk)
20:36
Fix Makefile.in to account for recent changes. Update fts5 test scripts so that they do not run if SQLITE_ENABLE_FTS5 is not defined. (check-in: 31752207 user: dan tags: fts5)
20:16
Merge latest trunk changes into this branch. (check-in: fcd8f7ce user: dan tags: fts5)
20:10
Add a script to combine all fts5 code into a single file - fts5.c - that can be used to build an SQLite loadable extension. (check-in: 46e86b06 user: dan tags: fts5)
19:53
Simplifications and performance improvements in insertCell(). (check-in: 7d02e6c9 user: drh tags: trunk)
18:36
More simplifications and performance improvements to cell allocation logic associated with allocateSpace(). (check-in: 78da0f69 user: drh tags: trunk)
16:01
Reorder the terms of a conditional for a small performance gain. (check-in: d67b0ed1 user: drh tags: trunk)
15:44
Merge all the latest enhancements from trunk. (check-in: 924f4712 user: drh tags: sessions)
15:21
Remove a NEVER() that is in fact reachable. (check-in: f824e66b user: drh tags: trunk)
15:04
Minor optimization to allocateSpace(). (check-in: d007bc33 user: drh tags: trunk)
13:03
Enhance the Btree object to remember whether or not it is holding an Incrblob cursor. Use this knowledge to improve performance in the common case where it does not. (check-in: 476b1156 user: drh tags: trunk)
02:26
Remove a line of code that doesn't do any useful work. (check-in: 3ee888be user: drh tags: trunk)
02:25
Increase the default timeout on fuzzcheck to 120 seconds - sufficient for running under valgrind on a slow workstation. (check-in: fad0eacc user: drh tags: trunk)
2015-06-24
23:44
Add the --timeout option to fuzzcheck. (check-in: a8f4f7fa user: drh tags: trunk)
23:17
Fix fuzzcheck so that it works with SQLITE_OMIT_PROGRESS_CALLBACK. (check-in: 7a9c4eb3 user: drh tags: trunk)
18:22
Add "ON CONFLICT" handling to the spellfix module. (check-in: 07937a81 user: drh tags: trunk)
17:21
Add "ON CONFLICT" handling to the spellfix module. (Closed-Leaf check-in: 1d04def7 user: dan tags: spellfix-constraints)
14:45
In the fuzzcheck test program, use the progress handler to limit the number of VDBE cycles to avoid getting stuck if the SQL under test contains an infinite CTE loop. Add the --limit-vdbe command-line option. (check-in: fbf9c432 user: drh tags: trunk)
14:36
Fix the progress handler so that it does not fire too soon during an sqlite3_step() call other than the first. (check-in: b41ef5d6 user: drh tags: trunk)
13:32
Fix a harmless compiler warning. (check-in: 3b6fa95e user: drh tags: trunk)
13:25
Rig the fuzzcheck test program so that it times out after 10 seconds in case of an infinite loop in the test case. (check-in: 659cfc9d user: drh tags: trunk)
13:05
Update the database fuzz test cases to cover all recent findings. (check-in: 47ba7d96 user: drh tags: trunk)
12:44
Add the --rebuild object to fuzzcheck. (check-in: db87664a user: drh tags: trunk)
12:24
Prevent an infinite loop while searching a corrupt freelist. (check-in: 4e5424fe user: drh tags: trunk)
12:07
Strengthen the new balance_nonroot() code against various corrupt database problems. (check-in: 5ba98343 user: drh tags: trunk)
10:46
Adjustment to a malloc test so that it accepts a narrow range of values to account for variations in malloc subsystems. (check-in: e0195070 user: drh tags: trunk)
01:07
Remove an invalid NEVER() and add a test case to cover it. (check-in: 14b73d20 user: drh tags: trunk)
00:05
Performance optimization on balance_nonroot() and related routines. 2.6% faster overall with a size increase of less than 750 bytes. (check-in: 25131e70 user: drh tags: trunk)
2015-06-23
23:31
Mark some branches as unreachable after the recent change that recognizes mismatch result set sizes on compound SELECT statements sooner. (check-in: c8d1f305 user: drh tags: trunk)
21:35
Testability improvement. (Closed-Leaf check-in: eed6a331 user: drh tags: btree-opt2)
18:47
Improve test coverage of fts5. (check-in: df5ccea8 user: dan tags: fts5)
18:24
Multiple overflow cells are always adjacent and sequential. Exploit this invariant for a small size reduction and performance increase and add assert()s to prove the invariant. (check-in: f77f2f48 user: drh tags: btree-opt2)
17:09
Faster loading of cell pointers into the b.apCell array in balance_nonroot. (check-in: fda89b05 user: drh tags: btree-opt2)
16:00
Avoid unnecessary cachedCellSize() calls in the cell partition adjustment phase of balance_nonroot(). (check-in: 6319ee12 user: drh tags: btree-opt2)
15:36
Change pageInsertArray() and pageFreeArray() so that they use the CellArray object and compute cell sizes as needed, resulting in smaller and faster code. (check-in: f7f41818 user: drh tags: btree-opt2)
15:06
Merge latest trunk changes with this branch. Add tests for columnsize=0. (check-in: ef44c71a user: dan tags: fts5)
14:49
Improvements to the way balance_nonroot() constructs the b.apCell array of pointers to cells. (check-in: ee44bb25 user: drh tags: btree-opt2)
13:02
Merge the compound SELECT operator fix from trunk. (check-in: a7be554f user: drh tags: btree-opt2)
12:19
Test that the left and right sides of a compound SELECT operator have the same number of expressions in the expanded expression list before beginning to generate code. (check-in: 4df852ce user: dan tags: trunk)
02:37
Avoid computing cell sizes in balance_nonroot() until they are really needed. This gives an overall 1.7% performance gain for about 1000 extra bytes of code space. (check-in: 43844537 user: drh tags: btree-opt2)
2015-06-22
20:02
Change the way that balance_nonroot() partitions cells between the sibling pages such that a scan of the cell size array is not required. (check-in: 16872871 user: drh tags: btree-opt2)
2015-06-20
18:13
Split out all four cases of cellSizePtr() into different methods, each optimized for the specific page type. This gives a 0.36% performance increase at a cost of about 300 bytes of code. (Leaf check-in: 522502ec user: drh tags: btree-opt)
14:11
Update the fuzztest data using the latest test vectors discovered by AFL. (check-in: b97f9cf7 user: drh tags: trunk)
13:18
Make sure that the likelihood() function does not mess up generation of result-set code when it is used (inappropropriately) in a result-set expression. (check-in: 7cdbae62 user: drh tags: trunk)
2015-06-19
20:31
Performance improvements in btreeParseCell() by inlining the varint decoder. (check-in: 172a864d user: drh tags: trunk)
20:08
Fix corner cases involving corrupt varint values in record headers. (Closed-Leaf check-in: 3189116b user: drh tags: btree-opt)
18:24
Performance improvements in btreeParseCell() by inlining the varint decoder. (check-in: faab0ed9 user: drh tags: btree-opt)
17:19
Add the MemPage.xParseCell method and provide various implementations (variations on the former btreeParseCellPtr()) depending on the page type. (check-in: 41d03d88 user: drh tags: trunk)
15:07
Make cellSizePtr() a method on the MemPage object, with alternative implementations depending on the page type. This results is a small performance improvement and size reduction. (check-in: 02f7e9d7 user: drh tags: trunk)
2015-06-18
15:26
Further #ifdef changes in speedtest1.c in order to support SQLite back to version 3.3.9 and perhaps even earlier. (check-in: 9246eca5 user: drh tags: trunk)
14:32
Pervent the likelihood() function from moving ON clause terms of a LEFT JOIN into the WHERE clause. Fix for ticket [5f60b11fc8e23490e2] (check-in: ed96e14a user: drh tags: trunk)
14:09
Show the values of Expr.flag in the AST of ".selecttrace" (check-in: a84d1004 user: drh tags: trunk)
12:37
Add #ifdefs to some features speedtest1.c so that it compiles with older versions of SQLite, going back to version 3.5.1. (check-in: f50dd154 user: drh tags: trunk)
2015-06-17
23:28
Performance improvement in sqlite3VdbeMemShallowCopy() for the common case where the receiver does not require prior resource deallocation. (check-in: d718ea36 user: drh tags: trunk)
19:06
Use 'binary' mode for popen with MSVC. (Closed-Leaf check-in: 7b84641e user: mistachkin tags: popenMsvc)
18:57
Improve spacing and comment style for the shell. No changes to code. (check-in: 5b547da0 user: mistachkin tags: trunk)
18:24
Improved comments on the fuzzcheck.c test program. No changes to code. (check-in: a7e27d19 user: drh tags: trunk)
18:18
Merge all recent enhancements and fixes from trunk. (check-in: 199bfb67 user: drh tags: sessions)
17:08
Fix a uninitialized variable use in the command-line shell when the ".open" command is invoked without any arguments. (check-in: fc4f4d1e user: drh tags: trunk)
13:20
Performance optimization and comment fixes for the LIKE and GLOB operators. (check-in: c89d7726 user: drh tags: trunk)
02:11
Make getCellInfo() a real function instead of a macro, for a size reduction and a 0.2% performance gain. (check-in: 55c393ea user: drh tags: trunk)
01:31
Optimizations to two VDBE accessory routines for a 0.2% performance increase. (check-in: 66d033b9 user: drh tags: trunk)
2015-06-16
16:39
Ensure that the CREATE TABLE AS statement correctly undoes partial changes to the sqlite_master table if the SELECT on the right-hand side aborts with an error. Fix for ticket [873cae2b6e25b] (check-in: 400e025e user: drh tags: trunk)
2015-06-15
16:40
Adjust ICU tests to account for recent changes in the official Unicode definition of whitespace. (check-in: 08165253 user: drh tags: trunk)
16:09
Fix a harmless comment typo. No code changes. (check-in: ae687652 user: drh tags: trunk)
14:43
Fix harmless compiler warnings. (check-in: b0badb99 user: drh tags: trunk)
12:58
Improved detection of database corruption in freeSpace(). (check-in: 29bcb568 user: drh tags: trunk)
10:49
Comment typo fix. No code changes. (check-in: 17f185ad user: drh tags: trunk)
2015-06-13
19:05
Added test cases based on Bruce Momjian's talk on SQL NULLs. (Leaf check-in: 68c168b5 user: drh tags: is-distinct-from)
11:48
Add the IS DISTINCT FROM and IS NOT DISTINCT FROM operators. (check-in: 0be44782 user: drh tags: is-distinct-from)
11:19
Omit mutex calls in pcache1 when the mutex is NULL, for a significant performance improvement. (check-in: caf8f574 user: drh tags: trunk)
11:10
Avoid unnecessary mutex usage in pcache1, for a significant speedup. (Closed-Leaf check-in: dcf4fb8d user: drh tags: faster-pcache1-fetch)
2015-06-12
13:49
Add a fast-path implementation of pcache1Fetch() for the common case of separate caches that do not use a mutex. (check-in: 760700ed user: drh tags: faster-pcache1-fetch)
13:04
Minor performance optimization in pcache1.c. (check-in: 2e8ad2ea user: drh tags: trunk)
12:54
Add the OP_ColumnsUsed opcode (when compiled with SQLITE_ENABLE_COLUMN_USED_MASK) as a hint to the b-tree layer as to which columns of a btree cursor will be used. (check-in: 711a176c user: drh tags: trunk)
2015-06-11
18:01
Merge recent trunk enhancements and fixes. (check-in: c39cb0e2 user: drh tags: sessions)
17:58
Merge trunk fixes. (Leaf check-in: 1df8cbbe user: drh tags: view-optimization)
17:26
Add the sqlite3changegroup_xxx() APIs to the sessions module. For combining multiple changesets or patchsets. (check-in: 0c1a901c user: dan tags: sessions)
14:19
Remove stray outputs from the test suite. (check-in: afc6db9b user: drh tags: trunk)
13:58
When generating code for partial indexes, be sure not to modify the index condition expression in the schema. (check-in: e63d01c6 user: drh tags: trunk)
2015-06-10
23:02
More test output refinements. (Closed-Leaf check-in: e64a5681 user: mistachkin tags: testerOutput)
22:51
Remove possibly stray output from various tests. (check-in: f38e0be5 user: mistachkin tags: testerOutput)
22:03
Fix minor typo in the quicktest MSVC makefile target. (check-in: 75b65f9d user: mistachkin tags: trunk)
20:00
Merge enhancements from trunk. (check-in: 0e23a079 user: drh tags: view-optimization)
18:53
"test" targets on all makefiles use --verbose=file --output=test-out.txt. Add the new "quicktest" target to all makefiles - designed to run in under three minutes. The --quick option on releasetest.tcl now uses quicktest. (check-in: 6ddef2ad user: drh tags: trunk)
17:20
Resolve FROM-clause subqueries after query planning instead of before. Greatly reduce the estimated cost of automatic indexes for VIEWs and ephemeral tables since performance problems there cannot be mitigated via a CREATE INDEX. (check-in: a1eaf171 user: drh tags: view-optimization)
14:27
Avoid passing constraints that are unusable due to LEFT or CROSS joins to virtual table xBestIndex() methods. (check-in: 7b446771 user: dan tags: trunk)
10:45
Fix the fts5 xRename() method. (check-in: 0f7fd513 user: dan tags: fts5)
2015-06-09
20:58
Add the "columnsize=" option to fts5, similar to fts4's "matchinfo=fts3". (check-in: aa12f9d9 user: dan tags: fts5)
15:58
Add the --output=$file and --verbose=(0|1|file) options to tester.tcl. (check-in: f7b2c703 user: dan tags: trunk)
10:58
Remove some repeated lines of source code. Probably introduced by careless cut'n'pasting. (Closed-Leaf check-in: a34cd71c user: dan tags: vtab-left-join)
2015-06-08
22:59
Code refactoring to try to shift FROM-clause subquery manifesting until after the query planner runs. Except this does not currently work because the query planner needs an estimated of the number of rows in the manifested table. Work in progress. (check-in: cabf2187 user: drh tags: view-optimization)
19:15
Add the valgrindfuzz target to unix makefile. (check-in: e62aed01 user: drh tags: trunk)
18:48
If a query contains "FROM t1 LEFT JOIN t2, t3, t4", ensure that tables t3 and t4 are not scanned before t2. The trunk already does this. (check-in: 0d9edfab user: dan tags: vtab-left-join)
18:05
Avoid passing constraints that are unusable due to LEFT or CROSS joins to virtual table xBestIndex() methods. (check-in: 80ee56dd user: dan tags: vtab-left-join)
17:42
Fix typo in comment. No changes to code. (check-in: e49c2917 user: mistachkin tags: trunk)
17:40
Split out some source code into new files: wherecode.c, whereexpr.c, and treeview.c. Other minor refactoring changes. (check-in: 50f33681 user: drh tags: trunk)
15:08
Factor out the TreeView parse tree printing module into a separate file. (check-in: c32ce54c user: drh tags: view-optimization)
14:23
Split more subfunctions of where.c out into a new whereexpr.c source file, for improved maintainability. (check-in: 46ef95c1 user: drh tags: view-optimization)
2015-06-06
20:12
Split out the bulk of the actual VDBE code generation logic from where.c into a new file, leaving behind the analysis logic. This makes the original where.c smaller and hopefully easier to edit. (check-in: faa0e420 user: drh tags: view-optimization)
19:23
Fix a comment in fts5.h. (check-in: e964b587 user: dan tags: fts5)
18:30
Code simplifications in select.c and where.c. (check-in: 4f20ac90 user: drh tags: view-optimization)
16:28
Fix handling of fts5 rowid constraints in the absence of a MATCH clause. Add tests to cover recently added branches. (check-in: 3a9cb648 user: dan tags: fts5)
00:18
Minor cleanup of the sqlite3Select() procedure. (check-in: f4c90d06 user: drh tags: view-optimization)
2015-06-05
22:33
Split FROM-clause subquery flattening and code generation into separate loops. (check-in: be8e3fc7 user: drh tags: view-optimization)
20:27
Provide one final Select tree dump prior to WHERE clause analysis when ".selecttrace 0x400" tracing bit is set with SELECTTRACE_ENABLED. Analysis and debug changes only - normal builds are unaffected. (check-in: 283bf0b6 user: drh tags: trunk)
19:05
Make use of range constraints on the rowid field of an fts5 table in full-text queries. (check-in: 32cbc0ed user: dan tags: fts5)